package com.smartcampusbackend.service;

import com.smartcampusbackend.model.AnnouncementAttachment;
import java.util.List;
 
public interface AnnouncementAttachmentService {
    int addAttachment(AnnouncementAttachment attachment);
    List<AnnouncementAttachment> getAttachmentsByAnnouncementId(Integer announcementId);
    // 新增：删除附件
    int deleteAttachmentsByAnnouncementId(Integer announcementId);
} 